Dual element authentication system, two-element authentication method, two element authentication program and application for authentication operation

摘要

Problem to be solved: to provide a two element authentication system, a two element authentication method, a two element authentication program, and an application for authentication operation, while reducing the burden on the user while reducing the burden on the user.In the two-element authentication system, the authentication server 2 generates an arbitrary authentication code according to the authentication request from the cloud service server 3.The authentication server 2 transmits the authentication code to the client terminal 1.The client terminal transmits the authentication code with the electronic signature to the authentication server 2.The authentication server 2 measures the elapsed time from the time when the authentication request is obtained or the time when the authentication operation information is acquired from the client terminal 1, and performs the second authentication processing based on the authentication code acquired from the client terminal 1 and the stored authentication code.The authentication server 2 sends the result of the second authentication processing to the cloud service server 3 when the elapsed time is within a predetermined time.Diagram